Spring suspension



` SeP*- 7 1926,

J. KLEIN SPRING SUSPENS I ON Filed May 12 1926 Jwwwk J IIIIIIII "www Aing plate 7 thereover onto which locking nuts plate 9 through an adjacent portion of theV under side of the corresponding side portion A"of the chassis 1A while the rearward end thereof is pivotally connected to one end of a shackle 10.

Pivotally mounted Vupon the corresponding portion 3of 'one vside of the vehicle chassis 1 through the medium of a pivot plate or bearing 11 isa shorter and downwardly disposed semielliptical leaf spring 12; is being noted in'this connection that securing bolts 18 passed vabout the pivota-lly plate 18 iixedly secured to an adjacent porthat portion of the plate 11 connected tothe saidspring 12 has its engagement eected through themediu-m 'of inverted U-shaped adjacent portions of such spring 12 whereupon a clamping plate is engaged therewith and is positively securedin position` through the medium of lockingnuts 14 engaged with the free extremities of saidbolts 13.. It is also tob'e notedin this connection that the arrangen'icnt of the bolts 13 with respect to the downwardly disposed lea-f spring 12 isl 'slightly oil center, so that said spring is provided with opposed leg portions of differentvlengths, that leg portion designated byY the numeral 15'being the shorter vof the two' and being arranged upon the rearward side of said spring 12 and having a suitable bearing formed in its free extremity and pivotally connected to the opposite side of the shackle connection 10, aforesaid. The remaining leg portion 16 of the spring 12 is of greater length than the leg portionY 15 and has a bearing formed yin its free extremity whereby to effect pivotal connection with a link or shackle 17 which in vturn is connected to a suitable bracket tion of the offset part 3 ofthe vehicle chassis side.

It is to be furthermore noted that thejlength of the spring 12 is such that the forward 'portion 16 thereof distance sli the pointvct connection of the bolts 5 with the axle casing 6, the purpose of which will or free end of the leg will be extended for a be subsequently described.

At this the. arrangement'or mounting of the spring suspension devices at the forward ends of the vehicle chassis 1 slightly differs from .that of the rearwardly arranged'suspension B5.'- 'the rearward 1 en devices that the shorter spring 12 is 'substantially straight as is snown in the Fi re 1l 'at the numeral 12; of said spring* l2"v being i portion of s Y bolts 5y disposed pair of are not subjected to as great stresses as are ghtly beyond or forwardly of' point, it may be also noted that' or secondary by reason of' portions 16 of the shock absorbing.springsl Y vehicle chassis 1, preferably inVV proximity to the horn portion 2 thereof. Also, it will be Vnoted that the forward end of the principal supporting spring 4 is pivotally connected to the free extremity of the adjacent horn 2 as is designated bythe numeral 19 whereas the rearward end of said spring is pivotally connectedto the adjacent end'of the shackle 10', and the intermediate uch principal supporting spring is connected through U-shaped securing to an adjacent portion of the forward axle or bolster 20 of the vehiclef Because of the 'fact that the forwardly spring suspension devices the rearwardly disposed pair of saidspring devices, 'l or form the forward suspension devicesfin smaller sizes, as shown in the Figure 1.

In `operation orusage of the improved 'spring suspension devices, it will'be understood that ordinarystresses imparted to the principal supporting springsl 4 or 4 are partially absorbed thereby whereas the tailings of such lstresses will be transmitted to the rearward leg portions 1 5 of the springs 12 and 12, such leg portionsvv serving to absorb these minor stresses prior to their transmission to the vehicle chassis 1. lVhen, however, the principal supporting springs 4 and 4 are subjected to major or abnormal stresses, the forward leg 16 of the springs 12 and 12 withthe rearward leg portionsV thereof in effectually absorbing lsuch vabnormal or Inajorstresses prior totheir transmission or delivery to the vehicle chassis 1; it being understood that with minor or lesser stresseshto the legvportions 1 5! of 'saidrsprings 12 and 12, the forward leg p'ortions'of'said spring will not be flexed inasmuch as the lineA of resistance tosuch minor or lesser stresses will be from the points of pivotal connection of the free Vextremities ofsaid leg portions 15 to theV pivotal `'mountings of thesprings 12 and 12 bracket plates y11 hereinbeforev described. As stated heretofore, however, with' the application of major or abnormalstresses to vsaid absorbing springs` 12 and 12, the forward'leg portions v16 Vof such springs will be yi'exed to such an extent as to fully absorb the .saine prior'to their delivery or transmission to the vehicle chassisl.v Also, thelfact that the forward leg may and preferably de construct.

portions will combine the lapplication of 12 and 12 are ofgreater lengths,it understood that the shock absorbing" ties of such forward portionsare materially greater than those of tions 15, and by consequence, that these said forward leg portions preventing material Vdelivery of the tailings thereof to the chassis 1. y v

Furthermore, by extending the forward ends of the shock absorbing springs 12 and 12 to points beyond and forwardly of the points of connection of the principal supporting springs l and 4 to their respective. I find thata greater' supporting devices,

f cantilever action results, hence, materially aiding the shock absorbing qualities or properties of the spring suspension devices.

Manifestly, the construction shown isr modification 1 and capable ofl Vconsiderable such modificationV as is within the scope my claims, I consider within the spirit of my invention. f

I claim: d' y 1. A spring suspension device for vehicles comprising in combination with thev vehicle chassis, a longitudinally disposed upwardly extending semi-elliptical spring means having the intermediate portion thereof'fixedly connected to a portion of the vehicle, a shock yabsorbing leaf spring arranged above said longitudinally disposed spring and in par allelism thereto, one end of said shock` ab-` sorbing spring to the adjacent end of said first spring and the opposite end of-said shock absorbing,

spring being pivotally connected to an ad-k jacent portion ofthe vehicleV chassis, the re-v maining extremity of said first mentioned spring being pivotally connected to a-portion of the/vehicle chassis spaced from the pivotal connection of the shock absorbing spring thereto, means foripivotally connecting the intermediate portion of said shoci` labsorbing spring 'to a portion of the vehicle chassis, and the said last mentioned conf necting means being larranged with respectk to said shock absorbing spring whereby-to provide the same withopposed leg portions v of unequal lengths.V c Y 2. A spring suspension device for vehicles,v comprising 1n combination with a vehicle chassis, a principal supporting semielliptical leaf spring iXedly connectedv at Y will be 7 proper'V Y "spring having pivotal connection with ak the rearward leg por- 16 willY serve to effec@ tually absorb the labnormal or ymajor stresses,

spring and j the rearwardextremity of said shock abl being pivotally connected` its intermediate lportion to a portion of the vehicle, the forward end of said principal sorbing spring havingpivotal connection 4,

with the adjacent rearward extremity of saidv principal supporting spring andthe forward end of the shock absorbingspring having ypivotal connection with arportionV of the vehicle chassis, means for pivotally connecting the intermediate portion of said yshock absorbing spring to a portion of the vehicle chassis, and said last vmentioned con-f' necting meansV being arranged upon said shock absorbing springwhereby to provide Ythev same-with opposed leg portions of un-y rrequal length. i

3.' A spring suspension prising in combination with a vehicle chas-Vv sis, anupwardlv disposed longitudinally eX-l tending semi-ellipticai principal support ing leaf spring, the intermediate portion of having connection with la Y l f said'leaf spring portion of the vehicle and the forward end of said principal supporting spring having pivotal connection with a portion of the vehiclerchassis, shock absorbing spring of less length rfor vehicles comthan the principal supporting 4 spring positioned above the-same and arranged in parallelism thereto, the rearward end of said shock absorbing spring being pivotally connected to the adjacent rearward end of said principal supporting spring, the forward end of saidshock absorbing spring being pivotally connected to an adjacent portion of said vehicle chas# sis at apointbeyond and forwardly of the,` intermediate connection of said principal supporting spring to the vehicle, and means for pivotally connecting the intermediate shock absorbing spring to a portionl of the vehicle chassis, said means ,being arranged upon` the shock` absorbing spring whereby to divide the same into op-` posed leg portions of different lengths.

portion of said.

In witness whereof I have hereunto set my hand.

" JOHN KLEIN, 

